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Causation, causal relation
| Glossary of Statistical Terms |
Two variables are causally related if changes in the value of one cause the other to change. for example, if one heats a rigid container filled with a gas, that causes the pressure of the gas in the container to increase. two variables can be associated without having any causal relation, and even if two variables have a causal relation, their correlation can be small or zero.
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Associated, английский
- Соответствующий; связанный; присоединенный
- Experiencing through your own senses (seeing through your own eyes, hearing with your own ears, feeling with your own feelings.)
Correlation, английский
- A measure of linear association between two (ordered) lists. two variables can be strongly correlated without having any causal relationship, and two variables can have a causal relationship and yet be uncorrelated.
- Соотношение; корреляция
- N корреляция, соответ- ствие regular ~s закономерные соответствия
- Корреляция
- Correlation is a statistical measure of the association between two attributes or types of events. it typically ranges from -1 to 1, with a -1 indicating a complete negative association (e.g., if one type of event occurs the other cannot), and a +1 indicating a complete posipage 66 tive association. for continuous attributes, the pearson correlation coefficient is computed as the ratio of the covariance between two attributes to the product of the attributes` standard errors. see also: covariance.
- To correlate, in a stratigraphic sense, is to show correspondence in character and in stratigraphic position between geographically separated stratigraphic sections or rock bodies. there are different kinds of correlation depending on the feature or property to be emphasized (see section 3.a.9 and lithocorrelation, biocorrelation, and chronocorrelation). coset. a sedimentary unit made up o f two or more sets, either o f strata or o f cross-strata, separated from other strata or cross-strata by original flat surfaces o f erosion, nondeposition, or abrupt change in character (mckee and weir, 1953, p. 384).
- Creating relationships between an email activity and other records by using the information from email headers.
- Statistical measure of the degree to which the movements of two variables (stock/option/convertible prices or returns) are related. see: correlation coefficient.
- The extent to which a relationship exists between two or more elements. often used in seo research to infer relationships of variables on search rankings due to the black box nature of algorithms. always remember, however, that correlation ≠ causation.
- A standardised measure, bounded between −1 and +1, of the strength of association between two variables.
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Linear association, английский
Two variables are linearly associated if a change in one is associated with a proportional change in the other, with the same constant of proportionality throughout the range of measurement. the correlation coefficient measures the degree of linear association on a scale of −1 to 1.
Disjoint or mutually exclusive sets, английский
Two sets are disjoint or mutually exclusive if they have no element in common. equivalently, two sets are disjoint if their intersection is the empty set.
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